#!/bin/bash
set -euo pipefail

# Publishes bb64 to the Gitea Releases page for the repository.
SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )"
ARCH=$(uname -m)
PROJECT="bb64"
OUTPUT="${SCRIPT_DIR}/output"

ARCH_ALIAS="amd64"
if [ "$ARCH" = "aarch64" ]; then
    ARCH_ALIAS="arm64"
fi

# Increment version
VERSION_FILE="${SCRIPT_DIR}/src/version.hpp"
if [ ! -f "${VERSION_FILE}" ]; then
    echo "${VERSION_FILE} not found!" >&2
    exit 1
else
    v=$(cat "${VERSION_FILE}" | grep -o 'static const char \*VERSION = "[0-9.]*";' | cut -d'"' -f2)
    oldv=$v
    v=$((v+1))  
    echo "Incrementing version from $oldv to $v" >&2
    echo "static const char *VERSION = \"$v\";" > "${VERSION_FILE}"
fi
TAG="v$v"

# build release version
export CMAKE_BUILD_TYPE="Release"

docker build \
  -t "${PROJECT}-build" \
  -f "${SCRIPT_DIR}/Dockerfile.dropshell-build" \
  --build-arg PROJECT="${PROJECT}" \
  --build-arg CMAKE_BUILD_TYPE="${CMAKE_BUILD_TYPE}" \
  --output "${OUTPUT}" \
  "${SCRIPT_DIR}"

[ -f "${OUTPUT}/${PROJECT}" ] || die "Build failed."

cp "${OUTPUT}/${PROJECT}" "${OUTPUT}/${PROJECT}.${ARCH_ALIAS}"
cp "${OUTPUT}/${PROJECT}" "${OUTPUT}/${PROJECT}.${ARCH}"

# Find repo info from .git/config
REPO_URL=$(git config --get remote.origin.url)
if [[ ! $REPO_URL =~ gitea ]]; then
    echo "Remote origin is not a Gitea repository: $REPO_URL" >&2
    exit 1
fi
# Extract base URL, owner, and repo
# Example: https://gitea.example.com/username/reponame.git
BASE_URL=$(echo "$REPO_URL" | sed -E 's#(https?://[^/]+)/.*#\1#')
OWNER=$(echo "$REPO_URL" | sed -E 's#.*/([^/]+)/[^/]+(\.git)?$#\1#')
REPO=$(echo "$REPO_URL" | sed -E 's#.*/([^/]+)(\.git)?$#\1#')

API_URL="$BASE_URL/api/v1/repos/$OWNER/$REPO"

# Check for GITEA_TOKEN_DEPLOY or GITEA_TOKEN
if [ -n "$GITEA_TOKEN_DEPLOY" ]; then
    TOKEN="$GITEA_TOKEN_DEPLOY"
elif [ -n "$GITEA_TOKEN" ]; then
    TOKEN="$GITEA_TOKEN"
else
    echo "GITEA_TOKEN_DEPLOY or GITEA_TOKEN environment variable not set!" >&2
    exit 1
fi

# Create release
RELEASE_DATA=$(cat <<EOF
{
  "tag_name": "$TAG",
  "name": "$TAG",
  "body": "bb64 release $TAG",
  "draft": false,
  "prerelease": false,
  "arch": ["${ARCH_ALIAS}"]
}
EOF
)

RELEASE_ID=$(curl -s -X POST "$API_URL/releases" \
    -H "Content-Type: application/json" \
    -H "Authorization: token $TOKEN" \
    -d "$RELEASE_DATA" | grep -o '"id":[0-9]*' | head -1 | cut -d: -f2)

if [ -z "$RELEASE_ID" ]; then
    echo "Failed to create release on Gitea." >&2
    exit 1
fi

# Upload binaries and install.sh
for FILE in ${PROJECT}.${ARCH_ALIAS} ${PROJECT}.${ARCH} install.sh; do
    if [ -f "output/$FILE" ]; then
        filetoupload="output/$FILE"
    elif [ -f "$FILE" ]; then
        filetoupload="$FILE"
    else
        continue
    fi

    # Auto-detect content type
    ctype=$(file --mime-type -b "$filetoupload")

    curl -s -X POST "$API_URL/releases/$RELEASE_ID/assets?name=$FILE" \
        -H "Content-Type: $ctype" \
        -H "Authorization: token $TOKEN" \
        --data-binary @"$filetoupload"
    echo "Uploaded $FILE to release $TAG as $ctype."
done

echo "Published bb64 version $v to $REPO_URL (tag $TAG) with binaries for $ARCH_ALIAS / $ARCH."